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macros: Use Visual C++ built-ins for byte swapping if available

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Signed-off-by: Frediano Ziglio <fziglio@redhat.com>
Acked-by: Christophe Fergeau <cfergeau@redhat.com>
This commit is contained in:
Frediano Ziglio 2018-03-09 13:04:43 +00:00
parent d1dca6450c
commit bd279b1fc1
1 changed files with 4 additions and 0 deletions
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4
spice/macros.h
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@ -252,6 +252,10 @@
# define SPICE_BYTESWAP16(val) __builtin_bswap16(val)
# define SPICE_BYTESWAP32(val) __builtin_bswap32(val)
# define SPICE_BYTESWAP64(val) __builtin_bswap64(val)
#elif defined(_MSC_VER)
# define SPICE_BYTESWAP16(val) _byteswap_ushort(val)
# define SPICE_BYTESWAP32(val) _byteswap_ulong(val)
# define SPICE_BYTESWAP64(val) _byteswap_uint64(val)
#else /* generic */
# define SPICE_BYTESWAP16(val) (SPICE_BYTESWAP16_CONSTANT (val))
# define SPICE_BYTESWAP32(val) (SPICE_BYTESWAP32_CONSTANT (val))